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Correlation of electroencephalogram, respiration and movement in the Rett syndrome

Kerr, A.M. and Southall, D. and Amos, P. and Cooper, R. and Samuels, M. and Mitchell, J. and Stephenson, J. (1990) Correlation of electroencephalogram, respiration and movement in the Rett syndrome. Brain and Development, 12 (1). pp. 61-68. ISSN 0387-7604

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Day time video records of 14 girls with the Rett syndrome (RS) (6-17, mean 7 years) were analysed to correlate episodic abnormalities in respiration, movement and electroencephalograms (EEG). Records were compared with those of 12 healthy girls (6-18, median 14 years) who hyperventilated voluntarily. Three RS girls (6-7 years) had minimal respiratory dysrhythmia and showed no correlation between EEG respiration and movement. The other 11 RS girls (6-17 years) had severe awake respiratory dysrhythmia; 10 showing hyperventilation (with hypocapnia) which alternated with active expiratory apnoeic pauses and one with the latter only. All had periods of awake regular breathing with normal respiratory gases. In these girls EEG showed non-epileptic generalised slow activity some of which was paroxysmal. In the six youngest (6-10 years) of these 11 RS girls, non-epileptic paroxysms of EEG slow activity at 1 1/2-4 Hz occurred and were associated with periods of normal breathing and normal pCO2 levels whether girls were alert, drowsy or asleep, but were uncommon during episodes of hyperventilation (and hypocapnia). In four of these girls the EEG paroxysms occupied less than or equal to 1-3% of the time during periods of respiratory dysrhythmia (81 minutes) and 8-100% of the time during alert periods with normal breathing (29 minutes), p less than or equal to 0.001 for this difference. Short bursts of EEG slowing occasionally followed prolonged apnoeic pauses. In two cases brief partial complex seizures occurred. In five of these girls stereotypic movements exacerbated during episodes of respiratory dysrhythmia and reduced during normal breathing.

Item type: Article
ID code: 38416
Keywords: electroencephalogram, respiration, Rett syndrome, EEG, Medicine (General), Probabilities. Mathematical statistics, Pediatrics, Clinical Neurology, Pediatrics, Perinatology, and Child Health, Developmental Neuroscience
Subjects: Medicine > Medicine (General)
Science > Mathematics > Probabilities. Mathematical statistics
Medicine > Pediatrics
Department: Faculty of Science > Mathematics and Statistics
Depositing user: Pure Administrator
Date Deposited: 12 Mar 2012 15:40
Last modified: 10 Dec 2015 18:31
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